"Gong covers three points of the country, and is famous for eight formations", these two sentences praise Zhuge Liang's great achievements. The first sentence is written from a general perspective, saying that Zhuge Liang made the most outstanding achievements in the process of establishing the situation of Wei, Shu and Wu being a three-part world and standing on top of each other. The formation of the coexistence of the Three Kingdoms, of course, has many factors, and Zhuge Liang's assistance to Liu Bei to create the foundation of the Kingdom of Shu from scratch should be said to be one of the important reasons.